This festive make-ahead casserole combines thick-cut bread, creamy eggnog custard, and a caramelized brown sugar topping for a comforting holiday breakfast. Easy to assemble the night before, it’s perfect for Christmas morning or cozy winter weekends.
For best texture, use slightly stale bread and let it soak in the custard overnight. If baking straight from the fridge, add 10 minutes to bake time. Cover with foil if browning too quickly. Customize with gluten-free or dairy-free ingredients, berries, apples, or chocolate chips. Store leftovers covered in the fridge for up to 3 days or freeze for up to 2 months.
Keywords: eggnog french toast casserole, holiday breakfast, make-ahead breakfast, Christmas brunch, easy casserole, festive breakfast, French toast bake